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[MIPS] vr41xx: Changed workaround to recommended method 

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Yoichi Yuasa 2006-07-08 00:42:01 +09:00 committed by Ralf Baechle
parent 30f244aed3
commit 1058ecda9b
1 changed files with 3 additions and 4 deletions
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7
arch/mips/mm/c-r4k.c
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@ -867,12 +867,13 @@ static void __init probe_pcache(void)
/* Workaround for cache instruction bug of VR4131 */ /* Workaround for cache instruction bug of VR4131 */
if (c->processor_id == 0x0c80U || c->processor_id == 0x0c81U || if (c->processor_id == 0x0c80U || c->processor_id == 0x0c81U ||
c->processor_id == 0x0c82U) { c->processor_id == 0x0c82U) {
config &= ~0x00000030U;
config |= 0x00400000U; config |= 0x00400000U;
if (c->processor_id == 0x0c80U) if (c->processor_id == 0x0c80U)
config |= VR41_CONF_BP; config |= VR41_CONF_BP;
write_c0_config(config); write_c0_config(config);
} } else
c->options |= MIPS_CPU_CACHE_CDEX_P;
icache_size = 1 << (10 + ((config & CONF_IC) >> 9)); icache_size = 1 << (10 + ((config & CONF_IC) >> 9));
c->icache.linesz = 16 << ((config & CONF_IB) >> 5); c->icache.linesz = 16 << ((config & CONF_IB) >> 5);
c->icache.ways = 2; c->icache.ways = 2;
@ -882,8 +883,6 @@ static void __init probe_pcache(void)
c->dcache.linesz = 16 << ((config & CONF_DB) >> 4); c->dcache.linesz = 16 << ((config & CONF_DB) >> 4);
c->dcache.ways = 2; c->dcache.ways = 2;
c->dcache.waybit = __ffs(dcache_size/2); c->dcache.waybit = __ffs(dcache_size/2);
c->options |= MIPS_CPU_CACHE_CDEX_P;
break; break;
case CPU_VR41XX: case CPU_VR41XX: